<template>
  <nav-bar>
    <div slot="left" class="back" @click="backItem">
      <img src="~assets/img/common/back.png" alt="">
    </div>
    <div slot="center" class="title">
      <div v-for="(item,index) in titles" class="title-item" :class="{active:index === currentIndex}"
      @click="titleClick(index)"
      >{{item}}</div>
    </div>
  </nav-bar>
</template>

<script>
  import NavBar from "../../../components/common/navbar/NavBar";
    export default {
        name: "DetailNavBar",
      components:{
          NavBar
      },
      data(){
          return {
            titles:['商品','参数','评论','推荐'],
            currentIndex:0
          }
      },
      methods:{
        titleClick(index){
          this.currentIndex= index
        },
        backItem(){
          this.$router.back()
        }
      },
      mounted() {

      }
    }
</script>

<style scoped>
.title{
  display: flex;
  font-size: 13px;
}
  .title-item{
    flex: 1;
  }
  .active{
  color: var(--color-high-text)
   }
  .back img{
    margin-top: 12px;
    width: 20px;
    height: 20px;
  }
</style>
